Looking to get your students, engaged, reading analytically, and writing argumentatively in a real world setting? This simulation introduces a little known legal concept, adverse possession, as the backdrop for a Mock Supreme Court case. Intended for students taking a government, civics, or law and justice course, the simulation requires students to play roles and make arguments from a variety of perspectives fulfilling a variety of roles in the judicial system. With such variety of roles, this simulation is an excellent way to differentiate instruction for classes with mixed ability levels. It is also an excellent way to incorporate argumentative writing into your social studies classroom.